To measure the strength of a welded joint what mechanical test would you prescribe?
a) A transverse weld tension test.
b) A charpy test.
c) A CTOD test.
d) An all weld metal tension test.
e) A side bend test. - correct answer a) A transverse weld tension test.
Select the cutting proce...
CWB Level 2 exam 2023 with 100% correct answers
To measure the strength of a welded joint what mechanical test would you prescribe?
a) A transverse weld tension test. b) A charpy test.
c) A CTOD test.
d) An all weld metal tension test. e) A side bend test. - correct answer a) A transverse weld tension test.
Select the cutting process that would provide the narrowest heat affected zone when cutting 12.5 mm (0.5 in) thick carbon steel.
a) Oxy-acetylene cutting. b) Air-carbon arc cutting. c) Oxy-propane cutting. d) Plasma arc cutting.
e) Laser beam cutting - correct answer e) Laser beam cutting
Which of the following refers to a welder test where a pipe assembly is placed vertically and the joint welded in the horizontal position without rotating the assembly?
a) 1G b) 2G c) 3G d) 5G e) 6G - correct answer b) 2G Which of the following imperfections is normally considered as unacceptable regardless of size or location?
a) Porosity. b) Crack.
c) Inadequate penetration.
d) Lamination.
e) Burn-through. - correct answer b) Crack.
Select the correct penetrameter thickness for 2% sensitivity when radiographing a weldment 1.25 inches
in thickness.
a) 0.012 in. b) 0.015 in. c) 0.025 in. d) 0.030 in. - correct answer c) 0.025 in.
Which of the following statements concerning porosity is true?
a) Porosity cannot be trapped within a weld.
b) Porosity moves up through later passes and will show only in a final pass. c) Porosity is restricted to the centre line of a weld.
d) Porosity can result from faulty welder technique.
e) Porosity can be dissipated by an appropriate heat treatment. - correct answer d) Porosity can result from faulty welder technique.
An irregular, dense white spot is seen on the radiograph of a weld. Assuming it was caused by the welding process used, which one of the processes below would be responsible?
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